Improvements in machinery for swaging the heads of screw-augers



UNITED STATES PATENT OFF1cE."-, y

EUssELL JENNiNes, or DEEP EivEE, CONNECTICUT.

IMPROVEMENTS IN MACHINERY FOR SWAGING THE HEADS 0F SCREW-AUGERS.

#Specification forming part of Letters Patent No. 53,869, dated Jnly31,1866; antedated January 31, 1866. l

To all mikem ma/y concern:

Be it knownthat I, RUSSELL JENNINGs, of I to the shaft.

Deep River, county of Middlesex, and State l of Connecticut, haveinvented a new and use- 1 ful Machine for Swaging or Forming the Heads-of Screw-Angers 5 and I do hereby declare that the following is a full,clear, and exact descrip- -tion thereof, which will enable those skilledin f the `art to make and use the same, reference beinghad to theaccompanying drawings; forming part of this specification, in which- I iFigure lis a front view of my invention; i Fig. A2, a transversevertical section of the` same taken in the line m w, Figail; Fig. 3, aplan or top view of an auger-headfformed or swaged according to myinvention; Fig. 4, a I face view of the die used foruforrning or swagingthe head. Fig. -represents a de' This invention relates to a new anduseful f improvement in swaging or forming the heads of screwaugers5 and1t consists in a novel arrangement of a die and mold, and the manner ofoperating the die, as hereinafter fully shown constitute the bed of themachine, said bed being supported at a suitable height by legs ad.' Toeach side of the bed there are secured uprights b, the upper ends oi'which are connected by a cross-piece, c.` Between the upper parts ofthese uprights there aresecured bearings d, in which a shaft, B, is ttedhorizontally, said shaft havinga crank or eccentric upon it, to which arod, C, is connected, the latterhaving a rod, e, connected to it byajoint, f, as'shown clearlyin Fig. 2.

Thelower end of rod chas a die, D, formed onjzit, or receivesthe portionon which the die is cut.

Orr` one end of the shaft B there is placed looselya wheel, Eghaving twopins, g g, Apr jecting from its innerside. There is als placed on saidshaft a wheel, F, the latter be ing onfasquare portion, h, on the shaft,so that'it'may slide"thereon, and at -the same The wheel F has aprojection, z', onits side, which faces the wheel E, said projection be-.ing at the edge of `wheel F, and having one end beveled, as shown inFig. l, and'from the oppositeY side of said wheel a pin, j, projects.

G is a bar which extends across the face of the wheel F,O and has itsend bent inward and inclined to1`form a lip, a",'for the-pro jection i'of the wheel F to come in conta'ct with, will be hereinafter explained.f*

A H is-'a horizontal sliding rodiitted in bearL ings 7c, attached to theuprights i), andtcon= j `nected at its outer end to a pendent lever, Il,

as shown in Fig. l. i' l On the outer end of shaft B there is keyed awheel, J, having a notch, l, infits periphery, 'and K is a springattached to one of the up rights b, and havingits free or disengaged endg bearing against the periphery of wheel J. i L- represents a mold orfemale die, corn; posed of two parts, Z l', one part, l, being fixed orstationary, and the other part, l', being al'- i is operated by atoggle, M, the joint of which is connected atits lower end to alever, O,one end of which is secured by a joint, m, to one of the legs orsupports a of the hed, and the other end connected by a joint to thelower end of vertical rod P, which passes up through a guide, n,attached to one of the uprights b. By raising the rod P the toggle Mwill be actuated to draw back the movable part Z' of the.moldorfemaledie `L, asshown Ain-redl in` Fig. l.

I The die L receives the auger to be operated upon'. The twist is givento the auger, and its end on which the head or cutting portion is to beswaged or formed is struck up in proper shape prior to the auger beingtt'ed in the die L, between the two parts Z l thereof, andfthesepartsare formed with a female screw, which grasps the screw formedl by thetwist rof the auger, and when the part l is closed against the part lthe auger is retained rmly in position, the end o of the auger above itstwist being in a cylindrical part-of the mold or die L. (See Fig.`2`.)

I time, whenever turned, communicate "motion lowed to move orY slidefreely. This partyZ/f,

has a pendant, N, attached, which extendsdown between the bars A A ofthe bed, and

Each ot" the pieces ZZ has a projection ZX, which, forming part of themold, projects into its fellow-piece, so as to make the formingthreadcontinuous. Were the projection ZX to be attached in the other die, intowhich it projects, it would cause that portion of the mold so far toinclose the twist of the auger as to prevent its withdrawal; but bycausing each section of the die to include a portion of its counterpartthe projecting portion is withdrawn and permits the auger to be raisedfrom its bed.

The headingdie D may be described as formed of a cylinder equal indiameter to the interior of the upper part of the mold L, in which itworks, provided with a central hole, p, to receive the pintle r of theauger-head, and having a recess, s, at opposite points in its side, toform the spurs t t of the auger-head, and having its face recessed, asshown at u u, to form projecting edges or floor-lips 'u o, tangentialwith the pintle, on which cutting-edges are formed to take out, when theauger is at work, the wood within the circular cut made by the lips tt.(See Figs. 3 and 4.)

The operation is as follows: The wheel E, during the operation of themachine, has a continuous rotary motion, and the operator, by raisingthe rod D, throws back the part L of the die L, and then inserts anauger between the parts ll', the auger being properly heated. Ihe rod Dis then shoved down and the part l closed against the part t, the augerbeing firmly secured within the mold or die. The lever I is thenactuated so that the rod H will bear against the wheel F, and move ittoward the wheel E, until one of the pins g of said wheel will come incontact with the projection i of the wheel F, when the latter is turned,and with it the shaft B, and the rod C forced down, and consequently theheading-die D, the latter acting upon the au ger and forming or swagingthe head thereon.

rJhe work is done with one revolution only of shaft B, the beveled endof the projection fi, at the termination of the revolution of wheel F,coming in contact with the inclined lip ctx, which causes the wheel F tobe moved from wheel E, and its projection i thrown out of the reach ofthe pins g of E, thc pin j of wheel F coming in contact with a shoulder,bx, on

the cross-piece c, to prevent a farther movement of F, by its momentum,and the spring K engaging with the notch l, to prevent any backlash orback movement of the shaft B. The rod P is then raised andthe die Lopened, the auger removed, and another one placed in the die, the latterclosed, and the lever I actuated to throw the Wheel F toward thedrivingwheel E, the pins ggof which come in contact with the projectioni of wheel F, and the succeeding auger is headed as the previous one.

By this device angers may be headed or have their cutting-edges formedon them with great rapidity and in a perfect manner. There is no weldingof parts together to form the cutting-edges of the head, the latterbeing swaged from a single piece of metal which forms the end of thescrew or twist of the auger.

I do not contine myself to any particular form or pattern for the headof the auger, the shape of the end of the plunger and of the uppercross-piece of the female die varying according to the style and form ofauger required.

I do not claim the principles of swaging as in bolt heads, nails, andspikes, but

I do claiml. The operating of the heading-die by the rotating shaft B,through the medium of the loose driving-wheel E, provided with the pinsg, the sliding wheel F, placed on a' square shaft, B, and provided withthe projection t', beveled at oneend, in connection with sliding rod H,and the fixed inclined lip a", all arranged to operate substantially asset forth.

2. The forming-die, consisting of the portions Z Z' D, constructed andoperating substantially as described.

3. The combination of the heading-die D, mold or female die L, toggle M,and driving or operating mechanism, so arranged that the driving-shaft Bmay, at the will of the operator, be connected with and disconnectedfrom the continually rotating driving-wheel E, substantially asdescribed.

RUSSELL JENNINGS.

Witnesses:

M. M. LIVINGSTON, WM. E. LYON.

